نتایج جستجو برای: avhrr

تعداد نتایج: 1310  

Journal: :Remote Sensing 2013
Lijuan Miao Yibo Luan Xiangzhong Luo Qiang Liu John C. Moore Reshmita Nath Bin He Feng Zhu Xuefeng Cui

This study evaluates the performances of three global satellite datasets (Advanced Very High Resolution Radiometer (AVHRR), Moderate Resolution Imaging Spectroradiometer (MODIS) and Satellite pour l’ observation de la Terre (SPOT) of the Mongolian Plateau, where in situ observation is insufficient to assess vegetation dynamics on terrestrial systems. We give a comprehensive assessment of the hi...

2010
A. Mandanayake

An automated satellite multi-image registration and mosaicing system based on aut?matic tie-point extra~tion and renavigation has been developed for A VHRR, TM, Viking Orbiter and pre-geocoded Images. ~he. ~eometnc aspects of image to image and image to ground registration form the core of any suc~ w.ork. ~owever a sIgnifIcant amount of preprocessing and some post-processing is n~ede~ to'produc...

2004
Mark J. Chopping Albert Rango Jerry C. Ritchie

Abstract Community-level vegetation type differentiation is regarded as an important application of remote sensing in monitoring the health of semiarid environments and yet it has proved difficult to discriminate more than two or three community types with confidence when using coarse spatial resolution data from off-nadir scanning sensors such as the AVHRR, even when multi-temporal datasets ar...

Journal: :Remote Sensing 2018
Simon Plank Sandro Martinis

The German Aerospace Center’s (DLR) TIMELINE project (“Time Series Processing of Medium Resolution Earth Observation Data Assessing Long-Term Dynamics in our Natural Environment”) aims to develop an operational processing and data management environment to process 30 years of National Oceanic and Atmospheric Administration (NOAA)—Advanced Very High-Resolution Radiometer (AVHRR) raw data into Le...

1995
Ian J. Barton

In situ measurements of skin and bulk sea surface temperatures have been obtained during a cruise of the RV Southern Surveyor during June 2006. Comparisons with satellite-derived estimates of SST show error variability that may lead to a better understanding of the role of the ocean surface and atmospheric conditions in contributing to the in situ/satellite differences. During the first half of...

ژورنال: :برنامه ریزی و آمایش فضا 2011
منوچهر فرج زاده اصل امان الله فتح نیا بهلول علیجانی پرویز ضیائیان

چکیده تغییرات عناصر اقلیمی می توانند بر وضعیت فنولوژی گیاهان مانند تاریخ شروع سبزینگی، اوج رشد و شروع پیری گیاه تأثیرات قابل توجهی بگذارند. تصاویر noaa/avhrr و داده¬های اقلیمی مربوط به سال 2006م است که در مراتع زاگرس در سطوح کم، متوسط و متراکم برای تعیین آستانه های اقلیمی بررسی شده است. نتایج طبقه بندی حاصل از همبستگی ترکیب مقادیر حداکثر شاخص اختلاف گیاهی نرمال شده (ndvi) و عناصر اقلیمی درون¬ی...

Journal: :Journal of Geophysical Research: Atmospheres 1999

Journal: :Journal of the Atmospheric Sciences 1998

Journal: :Remote Sensing 2017
Igor Yanovsky Ali Behrangi Yixin Wen Mathias Schreier Van Dang Bjorn Lambrigtsen

The images acquired by microwave sensors are blurry and have low resolution. On the other hand, the images obtained using infrared/visible sensors are often of higher resolution. In this paper, we develop a data fusion methodology and apply it to enhance the resolution of a microwave image using the data from a collocated infrared/visible sensor. Such an approach takes advantage of the spatial ...

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